Practice problems:
1. What are some advantages of using part-whole language and diagrams when solving addition and subtraction problems?
2. What's the other name for a part-whole diagram?
3. What's the other name for a number bond diagram?
4. In a math mountain, what number goes on the top of the mountain? What numbers go on the bottom of the mountain?
5. What manipulative work does a part-whole diagram resemble?
6. How can you represent the unknown quantity in a part-whole or number bond diagram?
7. If you write a the number sentence: 11-4=? to show how to solve a problem, what other number sentence could you write that would do the same thing?
8. In a Join problem, what is the whole? What are the parts?
9. In a Separate problem, what is the whole? What are the parts?
10. In a Compare problem, what is the whole? What are the parts?
11. For each of the following word problems:
a. Lisa had some fairies. For her birthday, she got 3 more fairies. Now she has 11 fairies. How many fairies did she have before her birthday?
b. Ellen had 14 erasers . She gave 8 erasers to Kallie. How many erasers does Ellen have left?
c. Jane had some crackers. She ate 2 crackers. Now she has 3 crackers left. How many crackers did she have before she ate any of them?
d. Kendra has 8 sharp pencils and 3 dull pencils. How many more sharp pencils than dull pencils does Kendra have?
e. Callie has 14 butterfly stickers. She has 8 more butterfly stickers than Shauna. How many butterfly stickers does Shauna have?